Search a number
-
+
28301405165 = 5117919333749
BaseRepresentation
bin11010010110111001…
…010010101111101101
32201001101002100022022
4122112321102233231
5430430124431130
621000153155525
72021222655215
oct322671225755
981041070268
1028301405165
1111003450650
12559a0bbba5
1328904bb2b7
141526a0b245
15b099517e5
hex696e52bed

28301405165 has 32 divisors (see below), whose sum is σ = 37713600000. Its totient is φ = 20216401920.

The previous prime is 28301405149. The next prime is 28301405173. The reversal of 28301405165 is 56150410382.

It is not a de Polignac number, because 28301405165 - 24 = 28301405149 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 821711 + ... + 855459.

It is an arithmetic number, because the mean of its divisors is an integer number (1178550000).

Almost surely, 228301405165 is an apocalyptic number.

It is an amenable number.

28301405165 is a deficient number, since it is larger than the sum of its proper divisors (9412194835).

28301405165 is a wasteful number, since it uses less digits than its factorization.

28301405165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34037.

The product of its (nonzero) digits is 28800, while the sum is 35.

The spelling of 28301405165 in words is "twenty-eight billion, three hundred one million, four hundred five thousand, one hundred sixty-five".

Divisors: 1 5 11 55 79 193 395 869 965 2123 4345 10615 15247 33749 76235 167717 168745 371239 838585 1856195 2666171 6513557 13330855 29327881 32567785 71649127 146639405 358245635 514571003 2572855015 5660281033 28301405165